Astudent measured the time required for a protein sample to be completely digested in the presence of an enzyme under different ph levels.
at which ph are all three of the enzymes below the least effective?

a. 2
b. 5
c. 7
d. 10

Give examples of animals that live in sea and are considered mammals. ♡

What kind of seafood would you expect to have the highest levels of mercury and why? kelp, because they use the sun to photosynthesize on the bottom trophic level. oysters, because they filter feed on plankton on a lower trophic level. small fish, because they eat plankton on a higher trophic level. sharks, because they feed on organisms on a higher trophic level.

What is the primary function of the nervous system?